naked mole rat

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naked mole rat,

name applied to a species (Heterocephalus glaber) of small rodentsrodent,
member of the mammalian order Rodentia, characterized by front teeth adapted for gnawing and cheek teeth adapted for chewing. The Rodentia is by far the largest mammalian order; nearly half of all mammal species are rodents.
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 found in E Africa, whose members—the only hairless rodents—live entirely in underground communities of 80 or more individuals with a structure resembling that of social-insect colonies. Colony members are closely related and seem to work for the success of the whole community rather than individual survival. The queen is head of the colony and is the only member to breed. She has approximately ten pups per litter and about four litters per year. The mole rats divide up the specialized chores, such as collecting food, disposing of waste, and digging tunnels. The colonies have extensive tunnel systems and a large central area for nesting. Naked mole rats are classified as Phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
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, subphylum Vertebrata, class Mammalia, order Rodentia.


See study by P. W. Sherman et al. (1991).

References in periodicals archive ?
With funding from the Life Extension Foundation[R], the couple discovered that protein synthesis is 4 times more accurate in naked mole rats than in mice.
In fact, when naked mole rat cells are induced to form a tumor, the rodents stop the threat almost immediately.
OPINION: Page 15 Desert rats are cunning survivors NAKED Mole Rats, also known by their pet name of "sand puppies" because they are bald and almost blind, are one of the few mammals in the animal kingdom about which we know relatively little.
Gorbunova have found that naked mole rats have about as much telomerase as mice.
Naked mole rats are small, hairless, subterranean rodents that have never been known to get cancer, despite having a 30-year lifespan.
Researchers were able to discover a chemical that made naked mole rats resistant to cancer.
The plants and animals that do survive here might not be pretty, or cute - such as the sabre-toothed naked mole rats that live underground - but they demand your respect just by their very existence.
Biologists thought the animals probably avoided the disease through the same strategy seen in naked mole rats, another long-lived subterranean rodent related to guinea pigs.
Naked mole rats stay underground all their lives, finding roots by tunnelling hundreds of metres from their breeding chambers.
Because of my research into the molecular mechanisms of aging and cancer, I maintain the second largest colony of naked mole rats in the world.
Their research found that a specific gene-p16-makes the cancerous cells in naked mole rats hypersensitive to overcrowding, and stops them from proliferating when too many crowd together.
Aging researchers, for example, recently zeroed in on the brain protein Neuregulin 1, or NRG-1, finding that naked mole rats had the most plentiful and persistent supply of it among all the rodent species they studied.